My dads coop suffered our first ever break in and we lost 3 chickens last night. However, with that aside, I'm trying to determine the culprit. The break in happened at night, and whatever it was tore a hole through the chicken wire to enter. There are no remains other than feathers, and two of the five chickens are unharmed. There could theoretically be more alive, but out and about. I live in southeastern PA, and the main chicken predators are Hawks, raccoons, and fox. It's mostly likely raccoon or fox, but I don't know if there's any disquingishing features.